Finding the Fourth Proportional to 12,448,128.68, 18,671,531.82 and 3,812,226.44
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Solution
The fourth proportional to 12,448,128.68, 18,671,531.82 and 3,812,226.44 is: 5,718,137.17
Step by Step Solution
- Step 1: Write the proportion equation
12,448,128.68 : 18,671,531.82 = 3,812,226.44 : x - Step 2: Convert to fraction form
12,448,128.68/18,671,531.82 = 3,812,226.44/x - Step 3: Cross multiply
12,448,128.68x = 18,671,531.82 × 3,812,226.44 - Step 4: Simplify right side
12,448,128.68x = 71,180,107,279,505.33 - Step 5: Solve for x
x = 71,180,107,279,505.33/12,448,128.68 - Step 6: Final answer
x = 5,718,137.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.